Best Answer: I'd say about 10-15 mins walking at a relatively average pace!! Fastest time to run a mile is around 4 minutes. The average time to walk a mile is 12 minutes, so half a mile would be 6 minutes. i walk a mile every morning in 15-20 minutes, so probably 10 minutes. At a semi rapid rate about 7 1/2 minutes.
Too much dryness in nasal cavity results in burning inside the nose. Allergy to certain foods can also lead to burning and inflammation in nasal mucus membrane. Nose picking and digging can make the nasal lining dry, which in turn can cause burning sensation in the nose. Diseases such as multiple sclerosis, stroke can cause burning sensation in the nose.
Nasal cannulas may cause mild discomfort or nosebleeds in some cases. One common problem is that the forced oxygen flow dries out the nasal passages. While oxygen is not flammable, it can feed a fire and make it much worse quickly.